Question

How do the gases exert pressure?

• A. Particles of gas hit each other.
• B. Particles of gas hit the walls of the containers.
• C. Particles of gas are highly compressible.
• D. Gas particles has less inter molecular force between the particles.

Answer 1

The correct option is B

Particles of gas hit the walls of the containers.

Since particles of gases move in every possible direction, they continuously collide with other particles and also with the walls of the container.
When the particles hit a wall of the container, they exert an unbalanced force on it.
Pressure is defined as force applied per unit area.
Thus, the gases exert a pressure on the walls of the container.